WTF, I was not able to use PLC (Power-Line Communication) on one wall power socket on which I have my UPS.
But I can use it if it's connected on the UPS connected on the same power socket on which the PLC does not work, this does not make sense?
This does not work
[wall] <- PLC <- UPS
This work
[wall] <- UPS <- PLC
:flan_bored: